Open Math Notes

Resources and inspiration for math instruction and learning

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Welcome to AMS Open Math Notes, a repository of freely downloadable mathematical works hosted by the American Mathematical Society as a service to researchers, faculty and students. Open Math Notes includes:

  • Draft works including course notes, textbooks, and research expositions. These have not been published elsewhere and are subject to revision.
  • Items previously published in the Journal of Inquiry-Based Learning in Mathematics, a refereed journal
  • Refereed publications at the AMS

Visitors are encouraged to download and use any of these materials as teaching and research aids, and to send constructive comments and suggestions to the authors.

Open Math Notes Advisory Board:

  • Karen Vogtmann, Chair | University of Warwick
  • Tom Halverson | Macalester College
  • Andrew Hwang | College of the Holy Cross
  • Robert Lazarsfeld | Stony Brook University
  • Mary Pugh | University of Toronto

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Allen Hatcher
Cornell University
MR ID: 82385
Reference #
OMN:201701.110676

Attributes

Posted date
2017-01-30 11:15:51
Revised date
2020-06-17 09:35:22
Level
   Undergraduate
Notes type
   Standard Course Offering
Topic
   Number Theory
      Elementary Number Theory

Topology of Numbers

Notes for an undergraduate course in elementary number theory. The viewpoint is more geometric than usual for such a course (hence the title). The central topic is binary quadratic forms via the associated Conway topographs.

Course Notes and Supplementary Material (PDF format)

TypeFile (Size)Date
Course notes v2 PDF (7.1M) 06/17/20